The global battery energy storage market size is estimated to be USD 50.81 billion in 2025 and is projected to reach USD 105.96 billion by 2030, at a CAGR of 15.8% during the forecast period according to a new report by MarketsandMarkets™. The key growth drivers for the battery energy storage system market include the expanding adoption of lithium-ion batteries in renewable energy applications and the accelerated deployment of grid-scale storage within modernization projects.